OP ARTS AND SCIENCES. 811 



The Legislation of the United States Belative to Weights and 



Measurhs, and tin; Reports to the Government on the Construc- 

 tion of Standards, may be found in the various Congressional 

 Documents, as follows: — 

 Report of Committee on Fixing Standards of Weight and Measure. Reports of 



Committees, 15th Cong., 2d Sess. (1818-19), vol. vi., Doc. 109. 

 Report on Weights and Measures, by J. Q. Adams, Sec. of State (Feb. 22, 1821). 



Executive Papers, Kith Cong., 2d Sess., Doc. 109. 

 Report of Committee to whom was referred the Report of the Sec. of State. 



Reports of Committees, 17th Cong., 1st Sess. (1821 -22), vol. ii., Doe. 65. 

 Comparison of Weights and Measures of Length and Capacity, by F. R. Hass- 



ler. Exec. Doc, 22d Cong., 1st Sess. (1832), vol. vi., Doc. 299. 

 Constructions of Standards of Weights and Measures. Reports of Committees, 



House Rep., 23d Cong., 2d Sess. (1835), vol. i., Doc. 132. 

 Letter from F. R. Hassler, in Rep. of Sec. Treas. Exec. Papers, House Rep., 



24th Cong., 1st Sess. (1835), vol. ii., Doc. 32. 

 Report on Furnishing States with Standards. • Rep. Coram., House Rep., 24th 



Cong., 1st Sess. (1836), vol. i., Doc. 259. 

 Ibid., vol. ii., Doc. 449. 



Report on Progress of Construction of Standards, by F. R. Hassler. Exec. Pa- 

 pers, 25th Cong., 2d Sess. (1837-38), vol. xi., Doc. 14. 

 Report on Construction and Completion of Standards for all the States of the 



Union, by F. R. Hassler (July 4th, 1838). Ibid., Doc. 454 

 Reports by F. R. Hassler. Senate Doc, 26th Cong., 1st Sess. (1839-40), vol. 



ii., Doc. 15 ; vol. viii., Doc 608. Also Sen. Doc, 26th Cong., 2d Sess. (1840 



-41), vol. xi., Doc. 20. 

 Report on Progress in Construction of Standards of Liquid and Capacity Meas- 

 ure, by F. R. Hassler. Sen. Doc, 27th Cong., 2d Sess. (1841-42), vol. iii., 



Doc. 225. 

 Reports by F. R. Hassler. Sen. Doc, 27th Cong., 3d Sess. (1842-43), vol. ii., 



Doc 11. 

 Report relative to Weights, Measures, and Balances, by F. R. Hassler. Exec 



Doc, 28th Cong., 1st Sess. (1843-44), vol. iv., Doc. 94. 

 Reports on Weights and Measures, by A. D. Bache. Exec. Doc, 28th Cong., 



2d Sess. (1844-45), vol. iv., Doc. 159. 

 Exec. Doc, 29th Cong., 1st Sess. (1845-46), vol. vii., Doc. 225. 

 Exec. Doc, 30th Cong., 1st Sess. (1847-48), vol. ix., Doc 84. 

 Report on Construction and Distribution of Weights, Measures, and Balances, 



and on Comparison of Foreign Standards, by A. D. Bache. Exec Doc, 



34th Cong., 3d Sess. (1856-57), vol. vi., Doc. 27. 

 Report on Weights, Measures, and Balances, by A. D. Bache. Exec. Doc, 35th 



Cong., 2d Sess. (1858-59), vol. vi., Doc G. (This report contains a r€sum€ 



of the work relative to the construction of standards previous to 1858. Also 



the titles of all State acts bearing on the subject from 1819 to 1854.) 

 Report of Committee appointed for Purpose of Investigating the Metric Sys- 

 tem, and accompanying Bill. Acts and Resolutions of 39th Cong., 1st Sess. 



(18G5- 66), p. 350. 

 Report of the Secretary of the Treasury to the House of Representatives. 



Reports in reference to the Adoption of the Metric System (1878), 45th 



Cong., 2d Sess., House Doc No. 71. 



